rs150425166

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP6BS2

The NM_024334.3(TMEM43):​c.484G>A​(p.Asp162Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000421 in 1,613,758 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D162Y) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

TMEM43
NM_024334.3 missense

Scores

2
7
10

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:4

Conservation

PhyloP100: 9.60

Publications

4 publications found
Variant links:
Genes affected
TMEM43 (HGNC:28472): (transmembrane protein 43) This gene belongs to the TMEM43 family. Defects in this gene are the cause of familial arrhythmogenic right ventricular dysplasia type 5 (ARVD5), also known as arrhythmogenic right ventricular cardiomyopathy type 5 (ARVC5). Arrhythmogenic right ventricular dysplasia is an inherited disorder, often involving both ventricles, and is characterized by ventricular tachycardia, heart failure, sudden cardiac death, and fibrofatty replacement of cardiomyocytes. This gene contains a response element for PPAR gamma (an adipogenic transcription factor), which may explain the fibrofatty replacement of the myocardium, a characteristic pathological finding in ARVC. [provided by RefSeq, Oct 2008]
TMEM43 Gene-Disease associations (from GenCC):
  • arrhythmogenic right ventricular dysplasia 5
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen, G2P
  • autosomal dominant Emery-Dreifuss muscular dystrophy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • auditory neuropathy, autosomal dominant 3
    Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • Emery-Dreifuss muscular dystrophy 7, autosomal dominant
    Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP6
Variant 3-14132907-G-A is Benign according to our data. Variant chr3-14132907-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 178140.
BS2
High AC in GnomAd4 at 29 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TMEM43NM_024334.3 linkc.484G>A p.Asp162Asn missense_variant Exon 6 of 12 ENST00000306077.5 NP_077310.1 Q9BTV4A0A024R2F9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TMEM43ENST00000306077.5 linkc.484G>A p.Asp162Asn missense_variant Exon 6 of 12 1 NM_024334.3 ENSP00000303992.5 Q9BTV4
TMEM43ENST00000432444.2 linkn.*514G>A non_coding_transcript_exon_variant Exon 7 of 13 3 ENSP00000395617.1 F8WDL3
TMEM43ENST00000432444.2 linkn.*514G>A 3_prime_UTR_variant Exon 7 of 13 3 ENSP00000395617.1 F8WDL3

Frequencies

GnomAD3 genomes
AF:
0.000191
AC:
29
AN:
152158
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000700
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000517
AC:
13
AN:
251460
AF XY:
0.0000515
show subpopulations
Gnomad AFR exome
AF:
0.000800
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1461600
Hom.:
0
Cov.:
31
AF XY:
0.0000275
AC XY:
20
AN XY:
727120
show subpopulations
African (AFR)
AF:
0.000926
AC:
31
AN:
33470
American (AMR)
AF:
0.0000224
AC:
1
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86130
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53396
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000540
AC:
6
AN:
1111914
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000191
AC:
29
AN:
152158
Hom.:
0
Cov.:
33
AF XY:
0.000188
AC XY:
14
AN XY:
74328
show subpopulations
African (AFR)
AF:
0.000700
AC:
29
AN:
41434
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000107
Hom.:
0
Bravo
AF:
0.000321
ESP6500AA
AF:
0.00159
AC:
7
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000824
AC:
10

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:3
May 28, 2024
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Clinical Genetics, Academic Medical Center
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

not specified Uncertain:1Benign:1
Mar 20, 2023
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jul 14, 2014
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant classified as Uncertain Significance - Favor Benign. The Asp162Asn varia nt in TMEM43 has not been previously reported in individuals with cardiomyopathy , but has been identified in 0.2% (7/4406) of African American chromosomes by th e NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS/; dbSNP rs150 425166). Computational prediction tools and conservation analysis do not provide strong support for or against an impact to the protein. In summary, while the c linical significance of the Asp162Asn variant is uncertain, its frequency sugges ts that it is more likely to be benign. -

Cardiomyopathy Benign:1
Nov 08, 2022
Color Diagnostics, LLC DBA Color Health
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cardiovascular phenotype Benign:1
Feb 22, 2022
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Arrhythmogenic right ventricular dysplasia 5 Benign:1
Jan 29, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.45
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.38
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.0094
T
Eigen
Uncertain
0.61
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.046
D
MetaRNN
Uncertain
0.44
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Uncertain
2.2
M
PhyloP100
9.6
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-1.2
N
REVEL
Benign
0.17
Sift
Benign
0.13
T
Sift4G
Benign
0.29
T
Polyphen
1.0
D
Vest4
0.74
MVP
0.58
MPC
0.38
ClinPred
0.34
T
GERP RS
5.3
Varity_R
0.14
gMVP
0.56
Mutation Taster
=41/59
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs150425166; hg19: chr3-14174407; COSMIC: COSV60146286; COSMIC: COSV60146286; API